The Escapers has released Flux 3.1 (http://theescapers.com/flux2/), an update of the Mac OS X app that allows drag ‘n drop creation of web pages without the need of knowledge of XHTMLICSS (though you can twiddle with the code if you like). The upgrade introduces a new History feature to allow reversing experimental changes or mistakes.
Snapshots can be easily created using a keyboard shortcut. Also, a new palette manages the complete history of your web page.
Users of both Flux 1 & 2 are entitled to an upgrade for £34.99, and new users can pay only £69.99 for a single user license, or £99.99 for a family license.